NES10-2 MK4

Price: £139.96 (£116.63 net)
NES10-2 MK4 5W amplified DSP Noise Eliminating Speaker

NES10-2MK4 5W amplified DSP noise eliminating speaker

The bhi NES10-2MK4 amplified DSP noise cancelling speaker removes noise and interference from noisy speech signals enabling you to have a much more enjoyable listening experience.  The speaker is compact and easy to use and incorporates the latest high performance bhi DSP noise cancelling technology. The three position switch on the top of the speaker controls the following functions; “Off” (audio bypass), “On” (amplified audio) and “DSP” (noise cancelling on). The speaker has a quality 5W audio amplifier with DSP noise cancelling from 8 to 40dB over 8 user levels, and tone reduction up to 65dB.  The NES10-2MK4 requires 10 to 18V DC (500mA). The speaker has an integral 2m audio lead terminated with a 3.5mm mono jack plug and comes with a sturdy metal mounting bracket.  There is a 3.5mm mono headphone socket on the side for listening with headphones. The speaker is muted when headphones are used and this socket is only headphone level and will not drive an extension speaker.  The NES10-2MK4 speaker is supplied with a rotary filter select knob (presses into rear switch), two fixing screws, 4 self-adhesive rubber feet, user manual, and x 1030-FPL fused DC power lead with tinned bare ends (requires DC power supply for this lead).

The NES10-2MK4 DSP noise cancelling speaker is suitable for use in a wide range of radio communication applications across all radio frequencies, and is particularly effective for improving the voice quality in amateur radio and shortwave listening. The speaker can be used in a base station base station environment or used mobile in a vehicle.

The power “On” LED illuminates red when power is applied and changes to green when the noise cancellation is active. The overload LED lights if the audio input is overloading the speaker.  The output level control allows you to adjust the audio output to suit your own conditions.

Read the great reviews from RadCom May 2020 and QST May 2021


  • Fully adaptive DSP noise cancelling 8 to 40dB
  • Up to 65dB tone reduction
  • Function switch for audio bypass, audio on and DSP on
  • 8 filter levels
  • 5 Watts audio (adjustable)
  • LED indication of power on, filter on and audio overload
  • 3.5mm mono headphone socket
  • Compact robust speaker housing
  • Easy to install with adjustable metal mounting bracket
  • 10 to 18V DC operation
  • 3.5mm mono headphone socket (headphone level only)
  • Supplied with a Fused DC power lead with bare ends,
    user manual, 4 x rubber feet, grey filter knob and fixing screws

BHI DSP Speaker on the Yaesu FTdx-10 | BHI NES10-2 MK4 Speaker
Reviewd by HAM RADIO 2.0


Hi Graham. I have now used the NES10-2 speaker for three weeks now.
It has enabled me to once again use the 80 metre band for the first time in years. Even being hard of hearing, I am hearing stations that would have been impossible for my ears to resolve previously.I cannot thank you enough for such a useful product which has re- opened the hobby to me.  Local noise has got worse over the years but the speaker is a dream product and all but wipes it out.
Best wishes Stephen Slater September 2023

"I own a JRC NRD545 DSP receiver which as always produced audio that I found really harsh to listen to on single sideband. On Saturday at the GQRP convention I purchased  NES10-2 speaker on a recommendation from a friend. I have owned and still own many audio filters of one sort or another but your product was a revelation. The NES10-2 does exactly what it says on the tin and I can now enjoy listening to my receiver."
Best regards  Ken

“On 40, 20, & 15 mtrs, I had constant 57/8 noise, I connected the NES10-2 to my rig and the improvement was truly remarkable”
Terry G0VTI

“An excellent easy-to-use plug-in accessory that can significantly improve your receivers audio performance and readability”
RadCom review Dec 2002